diff --git a/frontend/lib/registry/hoc/withContainerQuery.css b/frontend/lib/registry/hoc/withContainerQuery.css
index e01f5855..1967c6de 100644
--- a/frontend/lib/registry/hoc/withContainerQuery.css
+++ b/frontend/lib/registry/hoc/withContainerQuery.css
@@ -64,17 +64,6 @@
   }
 }
 
-/* ── v2-card-display — narrow 에서 cardsPerRow 1 (grid column 1) ── */
-@container v2-card-display (max-width: 480px) {
-  /* gridTemplateColumns 가 inline style 로 설정되어 있어도,
-     자식 선택자로 강제 override */
-  .v2-container-query-root [style*="grid-template-columns"],
-  .v2-container-query-root [style*="gridTemplateColumns"],
-  .v2-container-query-root .card-container {
-    grid-template-columns: 1fr !important;
-  }
-}
-
 /* ── v2-aggregation-widget — narrow 에서 2열 그리드 ── */
 @container v2-aggregation-widget (max-width: 480px) {
   .v2-container-query-root [style*="grid-template-columns"],
diff --git a/frontend/lib/utils/templateMigrate.ts b/frontend/lib/utils/templateMigrate.ts
index 54dc20a9..d4109854 100644
--- a/frontend/lib/utils/templateMigrate.ts
+++ b/frontend/lib/utils/templateMigrate.ts
@@ -50,7 +50,6 @@ const LEGACY_TO_UNIFIED: Record<string, string> = {
   'v2-aggregation-widget': 'stats',
   'aggregation-widget': 'stats',
   'v2-status-count': 'stats',
-  'card-display': 'stats',
   'v2-table-list': 'table',
   'table-list': 'table',
   'v2-tabs-widget': 'container',